the adjacent angle of a parralogram are in ratio 1:4 find all angles of parralogram
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in a parallelogram opposite angles are equal.
sum of total angles = 360°
according to the ratio 1:4
360° can be write as 360/5 × 1 : 360/5×4
= 72: 288
so the two angles = 72/2 = 36° and 288/2 = 144°
angles = 36°,144°,36°,144°
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